Annealing-box



(No Model.)

W. H. BAILEY. 'ANNEALING BOX.

No. 405,755. Patented June 25, 1889.

WITNESSES: IIVVENTOI? =1? By M g ATTORNEY UNITED STATES PATENT OFFICE.

XVILLIAM H. BAILEY, OF PITTSBURG, PENNSYLVANIA.

ANNEALlNG-BOX.

SPECIFICATION forming part of Letters Patent No. 405,755, dated June 25, 1889.

Application filed February 19, 1889. Serial No. 300,426. (No model.)

To all whom it Inay concern:

Be it known that 1, WILLIAM H. BAILEY, of Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented a new and Improved Annealing-Box, of which the following is a full, clear, and exact description.

This invention relates to the annealing of iron, the main object of the invention being to provide a box which will not warp, and which shall be so constructed that the metal within the box that is being operated upon shall be protected from the action of oxygen during the process of annealing.

To the ends named the invention consists in the construction and arrangement of parts, as will be hereinafter fully explained, and specifically pointed out in the claim.

Reference is to be had to the accompanying drawing, forming a part of this specification, in which the figure is a perspective view of my improved annealing-box.

In the drawing, 10 represents a box which is made up of side plates 11, that are braced and supported by T or angle irons 12, said angle-irons being bolted or riveted to place, other angle-irons 13 being arranged along the lower edges of the plates 12, which serve as supports for the bottom plate 14, which plate is formed with upwardly-extending flanges 15, that are bolted to the end plates 16.

The box-cover 17 rests upon angle-irons that are upheld within the box by rivets or bolts 18, and this cover is braced by angle or T irons 19, which extend upward, so that their upper edges are about level with the upper edges of the side plates 11,this construction providing for the placing of a layer of sand upon the cover-plate. The covering of sand protects the cover to a certain extent and prevents its warping when subjected to the intense heat of the annealing-furnace, and consequently, the rest of the box being made practically airtight, there is little danger of the oxidation of the articles that are being operated upon.

Having thus described my invention, I claim as new and desire to secure by Letters Patent- An annealing-box consisting in the two side plates 11, end plates 10, having outward-extending flanges at their ends riveted at their vertical edges to the flanges of the side plates, a series of vertical outwardly-proj ectin g angle orT irons 12, riveted to the outer faces of the side plates between their ends, the bottom plate 1-1, projecting at its longitudinal edges beyond the lower edges of the side plates and having upward-projecting ends 15, riveted to the lower edges of the end plates, angle-irons 13, riveted to the lower edges of the sides between an gle-irons 12 and to the projecting side edges of the bottom plate, the top plate 17 within the top of the box below its upper edges and provided with upwardly-projecting angle or T irons 17 on its upper side, and supports in the upper end of the box for said cover, substantially as set forth.

\VILLIAM H. BAILEY.

lVitnesses:

L. B. D. REESE, GEO. BIRD DUFF. 

